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Keep the Build Clean
Keep the Build CleanJohannes BrodwallHAVE YOU EVER LOOKED AT a list of compiler warnings the length of an essay on bad coding and thought to yourself, “You know, I really should do something about that...
分类:其他好文   时间:2015-05-12 11:22:03    阅读次数:132
MongDB 启动警告 WARNING: soft rlimits too low
# mongo MongoDB shell version: 3.0.2 connecting to: test Server has startup warnings:  2015-05-09T12:34:19.688-0700 I CONTROL  [initandlisten]  2015-05-09T12:34:19.688-0700 I CONTROL  [initandlis...
分类:数据库   时间:2015-05-10 06:23:42    阅读次数:2045
错误代码: 1052 Column 'stu_id' in field list is ambiguous
1、错误描述 1 queries executed, 0 success, 1 errors, 0 warnings 查询:select stu_id, (SELECT stu_name FROM t_student_info t WHERE t_student_info.stu_id = t.stu_id) stu_name from t_student_info t, t_... 错误代...
分类:其他好文   时间:2015-05-07 00:59:36    阅读次数:236
错误代码: 1054 Unknown column 'course' in 'field list'
1、错误描述 1 queries executed, 0 success, 1 errors, 0 warnings 查询:SELECT stu_name, course, score FROM t_student_info s LIMIT 0, 1000 错误代码: 1054 Unknown column 'course' in 'field list' 执行耗时 : 0 sec 传...
分类:其他好文   时间:2015-05-07 00:58:09    阅读次数:248
错误代码: 1248 Every derived table must have its own alias
1、错误描述 1 queries executed, 0 success, 1 errors, 0 warnings 查询:SELECT stu_id, (SELECT stu_name FROM t_student_info t WHERE t.stu_id = t.stu_id) stu_name FROM (SELECT SUM( CASE course WHEN '敮.. 错误代码:...
分类:其他好文   时间:2015-05-06 22:57:02    阅读次数:205
C++完成域名解析
network类: 自定义network.h头文件#ifndef _WINSOCK_DEPRECATED_NO_WARNINGS #define _WINSOCK_DEPRECATED_NO_WARNINGS #endif#ifndef _CRT_SECURE_NO_WARNINGS #define _CRT_SECURE_NO_WARNINGS #endif #ifndef _NetWork...
分类:编程语言   时间:2015-05-02 13:58:59    阅读次数:153
#301 (div.2) A. Combination Lock
1.题目描述:点击打开链接 2.解题思路:本题要求当前的密码经过最少的转动后和最终的密码一样。可以利用贪心法解决。考虑第i位,假设当前位a,目标为b,那么有两种转动方式,所需的步数分别为abs(a-b)和10-abs(a,b),取较小者即可。累加后即为最小的步数。 3.代码:#define _CRT_SECURE_NO_WARNINGS #include #include<...
分类:其他好文   时间:2015-05-01 12:03:16    阅读次数:118
kegg的某种svg展示图
#!perl use warnings; use strict; use SVG; use File::Basename qw(basename); die "perl $0 Note: support 24 colors to sample~ " if @ARGV != 3; my (@file, @pwtmp, @pw2sp); my $i = 0; open PW, $ARGV[...
分类:其他好文   时间:2015-04-30 20:13:41    阅读次数:117
电子词典--两次扫描文件发/链表法
二次扫描文件法实现的电子词典 #define _CRT_SECURE_NO_WARNINGS #include #include #include #include struct dict { char *key; char *content; }; int get_dict_size(FILE *pfile)//得到字典文件中词条总数 { if (pfile == NULL)...
分类:其他好文   时间:2015-04-28 20:59:34    阅读次数:160
#300 (div.1 2) A. Cutting Banner
1.题目描述:点击打开链接 2.解题思路:本题要求在一个串中寻找一个子串,使得将它截去之后,剩下的部分刚好能拼成CODEFORCES.直接枚举子串的起点和终点,然后判断即可。这道题一开始没有注意Announcement中的提示,只能找一个串,最终迟迟找不到错因==,太可惜了。。 3.代码: #define _CRT_SECURE_NO_WARNINGS #include #include ...
分类:其他好文   时间:2015-04-27 15:22:51    阅读次数:118
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